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All Journal JeLAST : Jurnal Teknik Kelautan , PWK , Sipil, dan Tambang Jurnal Pendidikan dan Konseling G-Tech : Jurnal Teknologi Terapan Lektrokom: Jurnal Ilmiah Program Studi Teknik Elektro
Stepanus Stepanus
Universitas Kristen Indonesia
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Languange, Linguistic, Communication & Media Mathematics Other

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Tinjauan Pembangkit Listrik Tenaga Bayu sebagai Sumber Daya Utama Menggantikan PLN dan Genset terhadap Energy Security pada Infrastruktur di Pulau Terpencil/Terluar Judo Ignatius Nempung; Eva Magdalena Silalahi; Edward Baringin Oloan Sihite; Stepanus Stepanus
Jurnal Pendidikan dan Konseling (JPDK) Vol. 5 No. 2 (2023): Jurnal Pendidikan dan Konseling
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jpdk.v5i2.13567

Abstract

Listrik memiliki peran penting sebagai sumber daya infrastruktur telekomunikasi selular (BTS) dalam menjamin kontinuitas penyediaan telekomunikasi antar pelanggan karena bisa berdampak pada kerugian baik bagi pihak operator maupun pelanggan. Listrik dari PLN yang setiap harinya shutdown selama 2 jam menjadi masalah penting dan harus dicarikan alternatif konfigurasi hybrid sumber daya listriknya. Sumber daya existing dirasa masih kurang dari segi ketahanan energi BTS system. Namun sumber listrik juga memiliki peran penting dan strategis dalam pembangunan berkelanjutan dengan memperhatikan aspek sosial, ekonomi dan lingkungan. Hal tersebut dapat dilihat dalam peraturan pemerintah No. 79 Tahun 2014 tentang kebijakan Energi Nasional (KEN). Alternatif konfigurasi pengganti disajikan untuk mencari konfigurasi lebih baik dengan mengutamakan penggunaan energi terbarukan seperti PLTB. 3 elemen dan dimensi 4A digunakan untuk menentukan alternatif terbaik disamping alternatif usulan utama yang menggunakan PLTB sebagai sumber daya utama. Aspek ekonomi dan lingkungan akan diperlihatkan juga untuk mengetahui perbedaan semua alternatif termasuk yang existing. Kalkulasi menggunakan persamaan HHI untuk mencari indeks tunggal power sharing sumber daya listrik dan persamaan normalisasi untuk mencari nilai min –max indikator relatif setiap konfigurasi. Bobot masing-masing indikator relatif dibuat rata atau berbobot sama karena tidak ada penekanan pada indikator tertentu. Hasil dengan ketahanan energi terbaik dapat dilihat pada angka energy security index terbesar yang diperlihatkan pada tabel.
Analisis Ketahanan Energi Pembangkit Listrik Tenaga Sampah (PLTSa) Metode Landfill dan Thermal di Tempat Pembuangan Sampah Terpadu (TPST) Bantar Gebang Benny Tuahta Bangun; Robinson Purba; Hakimul Batih; stepanus stepanus
Lektrokom : Jurnal Ilmiah Teknik Elektro Vol. 2 No. 1 (2019): Jurnal Lektrokom Volume 2, Oktober 2019
Publisher : Prodi Teknik Elektro FT UKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/lektrokom.v2i1.3313

Abstract

The problem facing by city of Jakarta today is the increasing volume of waste, reaching 7,000 tons per day sent to Bantar Gebang TPST which is currently not handled properly. The purpose of this research was to analyze the application of Landfill and Thermal Waste Power Plant (PLTSa) in Bantar Gebang TPST from the perspective of Energy Security by measuring Energy Supply Security Index (ESSI) using 4 dimensions and 5 approach indicators : Availability (Indicator: Working hour per year), Accessability (Indicator: Access to technology), Affordability (Indicator: Cost of generation per kWh) and Acceptability (Indicator: Avoided CO2 Emission kg per MWh and percentage reduction in waste volume per day). Energy security analysis results are obtained: aspects of availability with working hour indicators per year: PLTSa Landfill = 0.95, PLTSa Thermal = 0.98; aspects of accessibility with ease of technology access indicators: PLTSa Landfill = 0.74, PLTSa Thermal = 0.58; affordability aspects with indicators of the cost of electricity generation: PLTSa Landfill = 0.99, PLTSa Thermal = 0.983; aspects of accessability with two indicators, avoided (CO2) emission: PLTSa Landfill = 1.0, PLTSa Thermal = 0.14, and the percentage of waste reduction: PLTSa Landfill = 0.50, PLTSa Thermal = 0.85.
ANALISIS PERBANDINGAN PENGHEMATAN KONSUMSI ENERGI LISTRIK DAN PERENCANAAN PEMBANGKIT LISTRIK TENAGA HYBRYD MENUJU LOW ENERGY BUILDING PADA HOTEL MERCURE PONTIANAK DAN HOTEL IBIS STYLES BANDARA SOEKARNO HATTA JAKARTA Teddy Gama Silalahi; Stepanus Stepanus; Bambang Widodo
Lektrokom : Jurnal Ilmiah Teknik Elektro Vol. 2 No. 1 (2019): Jurnal Lektrokom Volume 2, Oktober 2019
Publisher : Prodi Teknik Elektro FT UKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/lektrokom.v2i1.3314

Abstract

In the current era of technological and information advancements, the growth of industry and business is becoming faster and faster. But this also encourages higher energy use and makes energy use a major contribution to operational costs that must be spent. This study aims to conduct a comparative analysis of Energy Consumption Intensity (IKE) at the Mercure Pontianak Hotel and the Ibis Styles Hotel SoekarnoHatta Airport Jakarta. The method used in this study is the Survey and Literature Study methods. Primary data is obtained from the 2018 Electricity Bill. The data is then used to calculate the Energy Consumption Intensity and then a simulation of energy savings using solar solar with Homer software simulation. The results showed that the IKE in the Mercure Pontianak Hotel building is bigger than the Ibis Styles Hotel SoekarnoHatta Airport which is 323,390 kWh / m2 / year meaning the energy usage in the Mercure Pontianak Hotel building is greater than the Ibis Styles Hotel SoekarnoHatta Airport Jakarta building with a difference of 79,389 kWh / year with a building age difference of +/- 5 years older Mercure Pontianak Hotel while the building area and number of rooms are almost the same. The simulation results of using solar cells obtained energy production of 221,866 kWh per year at a cost of Rp. 972 / kWh, meaning energy savings of 6-8% a year.
Analisis Perencanaan dan Kajian Ekonomi dalam Penggunaan PV Menuju Low Energy Building Pada Hote Inaya Putri Bali Fendy Eventius Mugni; Bambang Widodo; Stepanus Stepanus
Lektrokom : Jurnal Ilmiah Teknik Elektro Vol. 3 No. 1 (2020): Jurnal Lektrokom Volume 3, Oktober 2020
Publisher : Prodi Teknik Elektro FT UKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/lektrokom.v3i1.3315

Abstract

Industrial and business growth develops rapidly from time to time. This also encourages higher energy use and energy use is a major contributor to operational costs. This study aims to carry out planning and economic studies in the use of PV towards a low-energy building at Hote Inaya Putri Bali. The method used in this research is the survey method and literature study. Primary data is obtained from the 2019 Electricity Bill. The data is then used to calculate the Intensity of Energy Consumption, then taken from energy simulations using solar solar with Homer software simulations. The results showed that the IKE in the Inaya Putri Bali Hotel building was 131.8 kWh / m2 / year, meaning that energy use in the Inaya Putri Bali Hotel building was still efficient. Using the solar cell simulation results, the energy obtained is 443,732 kWh per year at a cost of Rp. 972 / kWh, which means energy savings of Rp. 35,942,292 per month or 14.5% per year.
Energi Angin Sebagai Sumber Daya Listrik Data Recovery Center Stepanus Stepanus; Iskandar Zulkarnaen; Arya Mirza; Fendy Eventius Mugni
Lektrokom : Jurnal Ilmiah Teknik Elektro Vol. 1 No. 1 (2018): Jurnal Lektrokom Volume 1 Oktober 2018
Publisher : Prodi Teknik Elektro FT UKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/lektrokom.v1i1.3316

Abstract

Untuk mengurangi ketergantungan yang sangat besar terhadap energi fosil yang mulai habis, perlu pemanfaatan energi terbarukan yang berasal dari sumber lain yang bukan berasal dari fosil. Salah satu energi bukan fosil yang dapat dimanfaatkan adalah energi angin yang bisa diubah menjadi energi listrik. Dalam tulisan ini energi listrik tersebut digunakan sebagai sumber daya listrik bagi data recovery center (DRC). DRC ini adalah tempat penyimpanan data cadangan dari Data Center, yang merupakan pusat penyimpanan data dengan server yang beroperasi 24 jam sehari, tujuh hari seminggu dan harus berada dalam kondisi lingkungan yang terkendali, hal tersebut menjadikan Data Center dan DRC sebagai salah satu pengguna listrik terbesar di dunia. DRC merupakan tuntutan dari kemajuan teknologi informatika yang menuntut tersedianya penyimpanan data yang besar dan aman, dimana syarat utama DRC adalah letaknya sebaiknya cukup jauh dari ibukota/kota besar sehingga fungsinya sebagai pusat cadangan data terpenuhi sewaktu Data Center terkait mengalami bencana (banjir, gempa bumi, dll) serta diperlukannya tenaga listrik yang stabil untuk menjaga data yang disimpan tetap aman. Dalam tulisan ini akan dibahas potensi energi angin yang bisa diubah menjadi energi listrik dan digunakan sebagai sumber daya listrik Data Recovery Center (DRC) di wilayah Pandeglang, Jawa Barat. Adapun penelitian yang dilakukan adalah melalui studi pustaka, informasi teknis turbin dan informasi teknis mengenai kecepatan angin di Indonesia yang didapat dari jaringan internet.
PERHITUNGAN ENERGI SOLAR PHOTOVOLTAIC DI WILAYAH KABUPATEN NIAS DAN KABUPATEN MENTAWAI DENGAN MENGGUNAKAN METODE PROBABILISTIK Boy Harefa; Bambang Widodo; Stepanus stepanus; Robinson Purba
Lektrokom : Jurnal Ilmiah Teknik Elektro Vol. 3 No. 1 (2020): Jurnal Lektrokom Volume 3, Oktober 2020
Publisher : Prodi Teknik Elektro FT UKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/lektrokom.v3i1.3374

Abstract

This paper discusess the calculation of solar photovoltaic energy using a probabilistic approach in Nias and Mentawai districts. The application used is the @RISK Risk Analysis Project Model. In this research, the calculated random variable is the average temperature, the length of sunshine per month and solar radiation according to the regional zone. These three variables are fluctuating, so that the approach of each varianble uses a uniform distirbution function. From the three variables, it can be calculated that the energy generated by solar photovoltaic with a capacity of 100 Wp in Nias Regency is 21.062,57 kWh in one year with a probability of 55% and a capacity factor of 24,04%. Meanwhile, in Mentawai District, the same solar photovoltaic capacity of 100 Wp produces 19.249,47 kWh of energy with a probability of 50% and a capacity factor of 21,97%. From the results of this study it can be seen that the average temperature, duration of solar radiation and solar radiation can determine the electrical energy that can be generated by solar radiation can determine the electrical energy that can be generated by solar photovoltaic
SISTEM PENGENDALIAN SUHU DAN KELEMBABAN PADA BILIK DISINFEKTAN BERBASIS BLYNK DENGAN MENGGUNAKAN NODEMCU ESP8266 Daniel Bawer Simanjuntak; Bambang Widodo; Susilo Susilo; Stepanus stepanus; Judo Ignatius Nempung
Lektrokom : Jurnal Ilmiah Teknik Elektro Vol. 4 No. 1 (2021): Jurnal Lektrokom Volume 4, September 2021
Publisher : Prodi Teknik Elektro FT UKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/lektrokom.v4i1.3388

Abstract

Coronavirus Disease 2019 (COVID-19) has been declared by WHO as a global pandemic and in Indonesia it is stated as a type of disease that causes public health emergencies and non-natural disasters, so it is necessary to make prevention efforts including prevention and control (Kemenkes RI, 2020) regarding prevention guidelines. and control of coronavirus disease 2019 (COVID-19). One way to prevent the spread of covid-19 is to spray disinfectants on objects suspected of having a virus. Especially for the human body, disinfectant spraying is carried out in a specially designed room or room. These booths are placed in markets, malls, schools, places of worship and so on. This research was conducted from September 2020 to December 2020 at the Faculty of Engineering, Christian University of Indonesia, Jakarta. Based on the test, it was found that the temperature and humidity can be displayed on the LCD and mobile phones via the Blynk application. Temperature regulation is done by activating or deactivating the exhaust fan and fan. At a temperature of> 280C the exhaust fan and fan will be active, then not active if the temperature is ≤280C. This tool has a measurement accuracy level for a temperature of 99.99% and 99.98% humidity with a thermohygrometer as a measurement reference tool.
SISTEM PENGENDALIAN DAN MONITORING KUALITAS AIR TAWAR SERTA PEMBERIAN PAKAN OTOMATIS PADA BUDI DAYA IKAN NILA MENGGUNAKAN NODEMCU ESP-12F DAVID PARULIAN; Bambang Widodo; Stepanus; Tahan Tobing
Lektrokom : Jurnal Ilmiah Teknik Elektro Vol. 4 No. 1 (2021): Jurnal Lektrokom Volume 4, September 2021
Publisher : Prodi Teknik Elektro FT UKI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/lektrokom.v4i1.4201

Abstract

Indonesia is an aquatic country that has great potential in the field of fish farming. "Minister of Maritime Affairs and Fisheries Edhy Prabowo said that the target for freshwater fish production next year is 4,685,446 tons of the total national aquaculture of 18,440,000 tons in 2020. A total of 4,685,446 tons are freshwater fish commodities such goldfish, tilapia, catfish and carp". The important thing in fish farming is the provision of fish feed and controlling water quality in the pond such as temperature and pH levels in the water. This study aims to design a system that can monitor and control pH and temperature in red tilapia aquaculture ponds. In this study, the system will be tested to get the pH and temperature in the pond by following the Indonesian National Standard, which is in the range of 25°C to 32°C, and the pH level of the water is in the range of 6.5 to 8.5 to produce good water quality for tilapia. Based on the test, it was found that the minimum water pH is 7.29 and the maximum water pH is 8.65, then the time needed to make the pH normal again is 2.5 hours, meanwhile the minimum temperature is 26.5°C and maximum is 31.2°C and still meets the requirements. standard, and for feeding tilapia is 40.57 grams.
Planning and Analysis of Economic Feasibility of Hybrid Solar Power Plant in Bekasi City Residential Stepanus Stepanus; Leonard Lisapaly; Andrew Paul Wijaya; Robinson Purba
G-Tech: Jurnal Teknologi Terapan Vol 8 No 3 (2024): G-Tech, Vol. 8 No. 3 Juli 2024
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33379/gtech.v8i3.4564

Abstract

This study discusses planning the Economic Feasibility of a Hybrid Solar Power Plant for consumer homes from PLN customers who are included in non-subsidized customers. Planning is carried out for middle and upper-scale households in Bekasi City. A household segment that uses a large amount of energy every month, high electricity bills every month makes consumers have to save energy so they can save on monthly bills. With the rapid increase in population growth, the energy demand is higher, so the electricity price from consumers will also increase. In addition, hazardous substances produced from using fossil energy sourced from PLN are one of the primary research focuses. From the simulation results using HOMER, it was found that installing PLTS can reduce CO2 emission levels by 33% with an NPC saving cost of Rp. 67.2 million, the energy that can be generated from the 4 Pv and Inverter configuration is 3,172 kW/yr with a COE of Rp.499.95.
PEMETAAN DAN PERENCANAAN MITIGASI BENCANA BERBASIS GIS DI KOTA SINGKAWANG KALIMANTAN BARAT Stepanus, Stepanus; Meirany, Jasisca; Wulandari, Agustiah
JeLAST : Jurnal Teknik Kelautan , PWK , Sipil, dan Tambang Vol 10, No 1 (2023): JeLAST Edisi Februari 2023
Publisher : JeLAST : Jurnal Teknik Kelautan , PWK , Sipil, dan Tambang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jelast.v10i1.62425

Abstract

Kota Singkawang adalah kota yang berada di pesisir utara Provinsi Kalimantan Barat dan berhadapan langsung dengan Laut Natuna. Kota ini memiliki potensi pariwisata terutama pantai dan laut yang terkenal di masyarakat. Berada di wilayah pesisir membuat Kota Singkawang rentan terhadap bencana. Sejalan dengan permasalahan tersebut, upaya untuk mengurangi risiko bencana adalah mitigasi bencana berbasis Sistem Informasi Geografis. Penelitian dilakukan untuk mengetahui daerah rawan banjir, cuaca ekstrim, abrasi, dan akresi beserta mitigasi bencana di Kota Singkawang. Metodologi penelitian yang digunakan adalah penelitian mix-methods dengan pengumpulan data sekunder berupa studi literatur. Hasil penelitian menunjukan risiko banjir tertinggi berada di Kecamatan Singkawang Timur sebesar 27.733,87 ha dan terendah di Kecamatan Singkawang Timur sebesar 54.280,87 ha, risiko cuaca ekstrim tertinggi berada di   Kecamatan   Singkawang Timur sebesar 42.734,20 ha dan terendah berada di Kecamatan Singkawang Selatan sebesar 57.978,34 ha,   resiko abrasi berada di Singkawang Utara,   Singkawang Tengah, Singkawang Barat, dan Singkawang Selatan, risiko akresi berada di Singkawang Utara dan Singkawang Selatan. Hasil pemetaan multi risiko bencana menghasilkan tingkat kerawanan tinggi sebesar 62.266,83 ha, kerawanan sedang sebesar 277.172,38 ha, dan kerawanan rendah sebesar 213.953,65 ha. Mitigasi bencana yang dilakukan adalah dengan penyediaan, perbaikan, mengevaluasi sarana prasarana dan peningkatan kesadaran masyarakat.
Co-Authors Andrew Paul Wijaya Antonius, Dikky Arya Mirza Bambang Widodo Benny Tuahta Bangun Boy Harefa Daniel Bawer Simanjuntak DAVID PARULIAN Edward Baringin Oloan Sihite Eva Magdalena Silalahi Fendy Eventius Mugni Hakimul Batih Iskandar Zulkarnaen Judo Ignatius Nempung Judo Ignatius Nempung Leonard Lisapaly Medyawanti Pane Meirany, Jasisca Robinson Purba Robinson Purba Sesmaro Max Yuda Susilo Susilo Tahan Tobing Teddy Gama Silalahi Wulandari, Agustiah